Ethers.TypedData.Field (Ethers v0.7.0)

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A single member of an EIP-712 struct type.

A field pairs a member name with its Solidity type string (e.g. "string", "address", "uint256", "Person", "Person[]"). The ordered list of fields for a given struct type is what encodeType/hashStruct operate on in the EIP-712 algorithm.

Both name and type are plain strings using the JSON/Solidity spelling (for example the domain's chain id field is named "chainId" with type "uint256").

Summary

Types

t()

An EIP-712 struct member.

Functions

new(field)

Creates a new Ethers.TypedData.Field from a map, keyword list, or an existing field.

Types

t()

@type t() :: %Ethers.TypedData.Field{name: String.t(), type: String.t()}

An EIP-712 struct member.

  • name - the member name as it appears in the message (e.g. "wallet", "chainId").
  • type - the Solidity type string of the member (e.g. "address", "Person[]").

Functions

new(field)

@spec new(t() | map() | keyword()) :: t()

Creates a new Ethers.TypedData.Field from a map, keyword list, or an existing field.

Accepts atom (:name/:type) or string ("name"/"type") keys. An existing Ethers.TypedData.Field is returned unchanged.

Examples

iex> Ethers.TypedData.Field.new(%{name: "wallet", type: "address"})
%Ethers.TypedData.Field{name: "wallet", type: "address"}

iex> Ethers.TypedData.Field.new(%{"name" => "contents", "type" => "string"})
%Ethers.TypedData.Field{name: "contents", type: "string"}